def __init__(self): 
	    self.items = [] 
	
	def isEmpty(self): 
	    return self.items == [] 
	
	def push(self, item): 
	    self.items.append(item) 
		
	def pop(self): 
		return self.items.pop(	) 
		
	def peek(self): 
		return self.items[-1] 
		
	def size(self): 
		return len(self.items)
# === DO NOT modify the code above ===
                   
def isMatch(expression): # DO NOT modify this line 
    # TODO: add your code here
    return # You can modify or delete this line

# === DO NOT modify the code below ===
def main():
    s1 = input()
    print(isMatch(s1))
    
if __name__ == '__main__':
    main()